DS26C31T

The DS26C31 is a quad differential line driver designed for digital data transmission over balanced lines. The DS26C31T meets all the requirements of EIA standard RS-422 while retaining the low power characteristics of CMOS. The DS26C31M is compatible with EIA standard RS-422; however, one exception in test methodology is taken . This enables the construction of serial and terminal interfaces while maintaining minimal power consumption.

The DS26C31 accepts TTL or CMOS input levels and translates these to RS-422 output levels. This part uses special output circuitry that enables the drivers to power down without loading down the bus. This device has enable and disable circuitry common to all four drivers. The DS26C31 is pin compatible to the AM26LS31 and the DS26LS31.

All inputs are protected against damage due to electrostatic discharge by diodes to V_CC and ground.

Reliability Metrics

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Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
DS26C31T MDC	CS200*	0	9850	0	0	3375000	2	957665465
DS26C31T MWC	CS200*	0	9850	0	0	3375000	2	957665465
DS26C31TM	CS200*	0	9850	0	0	3375000	2	957665465
DS26C31TMX	CS200*	0	9850	0	0	3375000	2	957665465
DS26C31TN	CS200*	0	9850	0	0	3375000	2	957665465

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

More Application Notes

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Title	Size in Kbytes	Date
AN-903: Application Note 903 A Comparison of Differential Termination Techniques	196 Kbytes	2-Oct-02	Download

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